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1.\" Copyright (c) 1983, 1991, 1993
2.\" The Regents of the University of California. All rights reserved.
3.\"
4.\" Redistribution and use in source and binary forms, with or without
5.\" modification, are permitted provided that the following conditions
6.\" are met:
7.\" 1. Redistributions of source code must retain the above copyright
8.\" notice, this list of conditions and the following disclaimer.

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25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30.\" SUCH DAMAGE.
31.\"
32.\" @(#)comsat.8 8.1 (Berkeley) 6/4/93
33.\" $FreeBSD: head/libexec/comsat/comsat.8 99500 2002-07-06 19:19:48Z charnier $
34.\"
35.Dd June 4, 1993
36.Dt COMSAT 8
37.Os
38.Sh NAME
39.Nm comsat
40.Nd biff server
41.Sh SYNOPSIS
42.Nm
43.Sh DESCRIPTION
44The
45.Nm
46utility is the server process which receives reports of incoming mail
47and notifies users if they have requested this service.
48The
49.Nm
50utility receives messages on a datagram port associated with the
51.Dq biff
52service
53specification (see
54.Xr services 5
55and
56.Xr inetd 8 ) .
57The one line messages are of the form:
58.Pp

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94Users should be notified of mail which arrives on other
95machines than the one to which they are currently logged in.
96.Pp
97The notification should appear in a separate window so it
98does not mess up the screen.
99.Sh HISTORY
100The
101.Nm
102utility appeared in
103.Bx 4.2 .